Amapulasitiki abhekisela ezintweni ezakhiwe ngokuyinhloko ngama-resin (noma ama-monomers ahlanganiswe ngqo ngesikhathi sokucubungula), anezelwa ngezithasiselo ezifana nama-plasticizer, ama-filler, ama-lubricant, kanye nemibala, engakhiwa ibe yisimo ngesikhathi sokucubungula.
Izici Eziyinhloko Zepulasitiki:
① Iningi lamapulasitiki lilula futhi lizinzile ngamakhemikhali, alimelani nokugqwala.
② Ukumelana okuhle kakhulu nokushayisana.
③ Ukukhanya okuhle kanye nokumelana nokuguguleka.
④ Izakhiwo zokuvikela ukushisa ezinokushisa okuphansi.
⑤ Ngokuvamile kulula ukuyibumba, ukuyifaka umbala, kanye nokuyicubungula ngentengo ephansi.
⑥ Amapulasitiki amaningi amelana nokushisa kahle, anwebeka kakhulu ekushiseni, futhi ayasha.
⑦ Ukungazinzi kobukhulu, okuvame ukuguquguquka.
⑧ Amapulasitiki amaningi abonisa ukusebenza okungekuhle ekushiseni okuphansi, aqina kalula ezimweni ezibandayo.
⑨ Iyakwazi ukuguga.
⑩ Amanye amapulasitiki ancibilika kalula ezincibilikisini.
Ama-resin e-phenoliczisetshenziswa kabanzi kwizicelo ze-FRP (Fiber-Reinforced Plastic) ezidinga izakhiwo ze-FST (Fire, Smoke, and Toxicity). Naphezu kwemikhawulo ethile (ikakhulukazi ukuphuka), ama-phenolic resins ahlala eyisigaba esikhulu sama-resins ezentengiselwano, ngomkhiqizo wonyaka wonke ocishe ube ngamathani ayizigidi eziyi-6. Ama-phenolic resins anikeza ukuzinza okuhle kakhulu kanye nokumelana namakhemikhali, agcina ukuzinza ngaphakathi kwebanga lokushisa elingu-150–180°C. Lezi zakhiwo, zihlanganiswe nenzuzo yazo yokusebenza kahle kwezindleko, ziqhuba ukusetshenziswa kwazo okuqhubekayo emikhiqizweni ye-FRP. Izicelo ezijwayelekile zifaka phakathi izingxenye zangaphakathi zezindiza, imikhumbi yempahla, ingaphakathi lezimoto zesitimela, ama-grating namapayipi epulatifomu kawoyela olwandle, izinto zomhubhe, izinto zokungqubuzana, ukufakelwa kwe-rocket nozzle, kanye neminye imikhiqizo ehlobene ne-FST.
Izinhlobo Zezinhlanganisela Ze-Fiber-Reinforced Phenolic
Izinhlanganisela ze-phenolic eziqiniswe ngefayibhafaka izinto ezithuthukisiwe ngemicu eqoshiwe, izindwangu, kanye nemicu eqhubekayo. Imicu eqoshiwe yokuqala (isb., ukhuni, i-cellulose) isasetshenziswa kuma-compound e-phenolic molding ezisetshenziswayo ezahlukahlukene, ikakhulukazi izingxenye zezimoto njengezimbozo zamaphampu amanzi kanye nezingxenye zokungqubuzana. Ama-compound e-phenolic molding esimanje afaka imicu yengilazi, imicu yensimbi, noma muva nje, imicu ye-carbon. Ama-phenolic resins asetshenziswa kuma-compound compounds angama-novolac resins, aphiliswa nge-hexamethylenetetramine.
Izinto zendwangu ezifakwe kusengaphambili zisetshenziswa ezinhlotsheni ezahlukahlukene, njenge-RTM (Resin Transfer Molding), izakhiwo zesandwich zezinyosi, ukuvikelwa kwe-ballistic, amaphaneli angaphakathi ezindiza, kanye nama-cargo liner. Imikhiqizo eqiniswe ngefayibha eqhubekayo yenziwa ngokugoqa noma ukuphambuka. Indwangu kanye nokuqhubekayoizinhlanganisela eziqiniswe ngefayibhangokuvamile zisebenzisa ama-resole phenolic resins ancibilika emanzini noma anyibilikayo. Ngaphandle kwama-resole phenolics, ezinye izinhlelo ze-phenolic ezihlobene—njenge-benzoxazines, ama-cyanate esters, kanye ne-resin esanda kuthuthukiswa ye-Calidur™—nazo ziyasetshenziswa ku-FRP.
I-Benzoxazine uhlobo olusha lwe-resin ye-phenolic. Ngokungafani nama-phenolic endabuko, lapho izingxenye zama-molecule zixhunyaniswa ngamabhuloho e-methylene [-CH₂-], ama-benzoxazine akha isakhiwo esijikelezayo. Ama-Benzoxazine akhiwa kalula ngezinto ze-phenolic (i-bisphenol noma i-novolac), ama-amine ayinhloko, kanye ne-formaldehyde. I-polymerization yawo evula indandatho ayikhiqizi imikhiqizo noma ama-volatiles, okuthuthukisa ukuzinza kobukhulu bomkhiqizo wokugcina. Ngaphezu kokumelana nokushisa okuphezulu nomlilo, ama-resin e-benzoxazine abonisa izakhiwo ezingekho kuma-phenolic endabuko, njengokumuncwa komswakama okuphansi kanye nokusebenza okuzinzile kwe-dielectric.
I-Calidur™ iyi-resin yesizukulwane esilandelayo, enengxenye eyodwa, eqinile yokushisa kwegumbi eyenziwe yi-Evonik Degussa yezimboni zezindiza kanye neze-elekthronikhi. I-Thisresin yelapha ku-140°C emahoreni ama-2, ngokushisa kokushintsha kwengilazi (Tg) okungu-195°C. Njengamanje, i-Calidur™ ikhombisa izinzuzo eziningi ze-composites ezisebenza kahle kakhulu: akukho ukukhishwa okuguqukayo, ukusabela okuphansi kwe-exothermic kanye nokuncipha ngesikhathi sokuqina, amandla aphezulu okushisa nokumanzi, ukucindezela okuphezulu kokuhlanganiswa kanye namandla okusika, kanye nokuqina okuhle kakhulu. Le resin entsha isebenza njengendlela ehlukile engabizi kakhulu kune-epoxy ephakathi kuya kwephezulu ye-Tg, i-bismaleimide, kanye ne-cyanate ester resins ezindizayo, ezokuthutha, izimoto, kagesi/elekthronikhi, kanye nezinye izinhlelo zokusebenza ezidinga amandla.
Isikhathi sokuthunyelwe: Juni-24-2025
